| Argentina (3) |
|---|
| Mayer, Leonardo | | Monaco, Juan | | Pella, Guido |
| | Australia (2) |
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| Kyrgios, Nick | | Tomic, Bernard |
| | Austria (1) |
|---|
| Thiem, Dominic |
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| Bosnia-Herzegovina (1) |
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| Dzumhur, Damir |
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| Bellucci, Thomaz |
| | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
| | Canada (2) |
|---|
| Pospisil, Vasek | | Raonic, Milos |
|
| Croatia (2) |
|---|
| Coric, Borna | | Karlovic, Ivo |
| | Czech Republic (1) |
|---|
| Berdych, Tomas |
| | France (9) |
|---|
| Benneteau, Julien | | Chardy, Jeremy | | Gasquet, Richard | | Mahut, Nicolas | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Tsonga, Jo-Wilfried |
| | Germany (2) |
|---|
| Kohlschreiber, Philipp | | Zverev, Alexander |
|
| Italy (7) |
|---|
| Caruso, Salvatore | | Cecchinato, Marco | | Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas | | Sonego, Lorenzo | | Volandri, Filippo |
| | | Kazakhstan (1) |
|---|
| Kukushkin, Mikhail |
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| Gulbis, Ernests |
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| Gabashvili, Teymuraz |
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| Djokovic, Novak | | Troicki, Viktor |
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| Bedene, Aljaz |
|
| South Africa (1) |
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| Anderson, Kevin |
| | Spain (7) |
|---|
| Bautista Agut, Roberto | | Cervantes, Inigo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert |
| | Switzerland (2) |
|---|
| Federer, Roger | | Wawrinka, Stan |
| | Ukraine (1) |
|---|
| Dolgopolov, Alexandr |
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| United Kingdom (1) |
|---|
| Murray, Andy |
| | United States (3) |
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| Johnson, Steve | | Querrey, Sam | | Sock, Jack |
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